Co-precipitate of hardly soluble substance and water-soluble polymer and method for producing the same

摘要

The present invention provides 2- (1-isopropoxycarbonyloxy-2-methylpropyl) -7,8-dimethoxy-4 (5H), 10-dioxo-2H-1,2,3 having excellent solubility and absorbability. -It provides a coprecipitate of triazolo [4,5-c] [1] benzazepine and a water-soluble polymer.